package study.day2;

public class TestPerson {

	public static void main(String[] args) {
		Person zs = new Person("张三", 18, "男", 1.80f);
		zs.speak();
		int sum = zs.addition(23, 45);
		System.out.println("23+45="+ sum);
		zs.rename("李四");
	}
}
